Valdinei Freire

Escola de Artes, Ciências e Humanidades - EACHUniversidade de São Paulo - USP

São Paulo, SP


Since 2011, I am an Assistant Professor at EACH-USP in the Bachelor Undergraduate Program in Information Systems (BSI) and in the Graduate Program in Information Systems (PPgSI).

I hold a Ph.D. in Electric Enginer (2009) and a bachelor in Computer Engineer (2002), both from Escola Politécnica (USP) . During my Ph.D., I was a visiting scholar in the Instituto Superior Técnico, in Lisbon.

Research Interests:
My current research efforts focus on various aspects of sequential decision making under the frameworks of Markov Decision Process and Reinforcement Learning. In particular, I have been developing and studying models that consider a Risk Sensitive Evaluation. Although most of my work is theoretical, lately I have been applying MDP and RL to Education.

Fragmentos Estocástico:
Since January 2020, I have been maintained a Youtube channel in Portuguese, Fragmentos Estocásticos. There, I present snippets of MDP and RL theory. It may serve as a fast introduction to the mathematics behind MDP and RL.

selected publications

  1. JBCS
    ALICAT: a customized approach to item selection process in computerized adaptive testing
    G. Jatobá, V.M., Farias, J.S., Freire, V., and Delgado, Karina V.
  2. MICAI
    Risk-Sensitive Piecewise-Linear Policy Iteration for Stochastic Shortest Path Markov Decision Processes
    Dias Pastor, H., Oliveira Borges, I., Freire, V., and Valdivia Delgado, L.
    In Martínez-Villaseñor L., Herrera-Alcántara O., Ponce H., Castro-Espinoza F.A. (eds) Advances in Soft Computing. MICAI 2020. Lecture Notes in Computer Science, 2020
    Finding Feasible Policies for Extreme Risk-Averse Agents in Probabilistic Planning
    Fernandez, M.C., Barros, L.N., Mauá, D., Delgado, K.V., and Freire, V.
    In Cerri R., Prati R.C. (eds) Intelligent Systems. BRACIS 2020. Lecture Notes in Computer Science, 2020
  4. ICAPS
    An Exact Algorithm to Make a Trade-Off between Cost and Probability in SSPs
    Freire, Valdinei, Delgado, Karina Valdivia, and Silva Reis, Willy Arthur
    In Proceedings of the International Conference on Automated Planning and Scheduling 2019
  5. AAMAS
    GUBS: A Utility-Based Semantic for Goal-Directed Markov Decision Processes
    Freire, Valdinei, and Delgado, Karina Valdivia
    In Proceedings of the 16th Conference on Autonomous Agents and MultiAgent Systems 2017